Same problem here after updating from Natty to Oneiric. Hardware seems to be correctly detected by the kernel, but the hardware is not listed within the sound settings of unity. A "dmesg | grep audio" outputs the following hardware:
00:05.0 Multimedia audio controller: nVidia Corporation nForce Audio Processing Unit (rev a2) 00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev a1) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/803024 Title: [Oneiric] No Sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/803024/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs